Jean maurice dufournit and louis clemendot



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Letters Patent No. 77,806, dated May 12, 1868.

IMPROVEMENT IN PRESBRVING THE woon or corms.

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TO ALL WHOM IT MAY CONCERN:

Be it known that we, JEAN MAURICE DUEOURNBT, gentleman, and LOUIS CLEMENDQI, civil engineer, of Paris,

in thelrench Empire, have invented a new and useful Impermeabilizing Process applicable to Gotlins and other receivers of the like nature; and Wade hereby declare that the following is a full, clear, and exact description, which will enable others skilled in the art to make and use the same. I

' Heretofore the proper 'imperviousness of coflinsand the like was obtained by constructing such receivers entirely of lead or other metal. -But this method was found expensive, and therefore a more simple and-economic cal method was desirable, in order to enable allclasses to take advantage of the benefits arising from impervious 'vesselsof this character; a e

The object of our. invention,-therefore, is to produce an impervious lcoflin, simple in construction, and so reduced in cost of manufacture, as to be readily introduced by the trade, and it consists in rendering coflins and other receivers, which are made generally of wood, perfectly air and water-tight, and consequently thoroughly preserving from decay the'bodies enclosed therein.

' First we render the wood of which the cofiin or other receiver is made, quite indestructible, by coating it inside and outside with any antiseptic matter, in such manner as to prevent any intrusion of liquids or air to the interior, or any evolving of miasmas from; the inside to the outside, from taking place.

' The lining used forour improved coflins, 8tc., may be tin, .lead, copper, or other thin metallic sheets, generally known by the name of metallic papers, or papers metallized onboth surfaces or metallic sheets,v having either of their faces coated with .varnish, or equivalent, whereby dampness and oxidation arc efi'ectiv'ely pre vented; or metallic sheets, having either of their faces covered with a thick or thin layer of paper orpasteboard,

may be used, or any other coating in which glue is not usedto cause its adhesion to the wood; or metallic. powders spread over thewood surface, and stuck thereto by any suitable means; or, we use instead of metallic papers and powders, as above described, paper or'pastcboard sheets rendered impervious by any antiseptic substanceused for preserving wood- Or, again, thesame paper, pasteboard, &c., sheets coated over with metallic sheets.

These various coatings ive apply. on either the internal or external walls of the coffin, 860., or on both. For rendering the closing-joint 'of the coflin tight, we;employ a floating margin extending from'the lining, and turned down on thelid or body' of said cofii'n, 86c.

This margin or extension may-be secured in position by any suitable'nieans. By onrprocess we-obtain First, perfectly tight and indestructible coffins, &c. v

Second, the complete preservation of the corpse or other bodies;

Third, we prevent any liquid from running through the coifin at any point, or any obnoxious ciHuvia from being exhaled therefrom. I 7 These results, which we obtain so economically, could 'not otherwise be obtained, excepting by the use of lead cofiins, or by the ordinary emba'lniingproces s, which are too expensive to be brought into-general use.

Having thus described our'irivention, what we claimas new, and desire'to secure by Letters Patent,'is The process as described, applicable to coflins and-the like wood receivers, for the purpose of preserving the corpse or other bodies enclosed therein, and which consists of 'f 1. Rendering the wood indestructible,-by coating itover with any antiseptic matter.- 2. Covering thec'oat'ed wood with metallic sheets or suitably-prepared papers, so as to obtain perfect air and water-tight surfaces, substantially as and for the purpose herein specified. Y DUFOURNET,

Ll CLEMENDOT.

Witnesses Demos, A. GUION. 

